jika suku ke-n, un =1/16n(n+1)(n+2), maka u8=...... a.240. c.206 b.207. d.120
Matematika
annisa1748
Pertanyaan
jika suku ke-n, un =1/16n(n+1)(n+2), maka u8=......
a.240. c.206
b.207. d.120
a.240. c.206
b.207. d.120
1 Jawaban
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1. Jawaban yuliantiriri55
un =1/16n(n+1)(n+2)
u8=1/16.8(8+1)(8+2)
u8=1/2(64+16+8+2)
u8=1/2(90)=45